Letters written during World War II were finally received by the soldier's family in Delaware County, Pennsylvania, more than 80 years after they were sent.

It's all thanks to a postage collector on a mission and a social media post. CBS News Philadelphia was there when a brother and sister opened the previously sealed letters their late father sent to his parents in 1944.

Sitting in a home in Ridley Park, Pennsylvania, siblings Kathleen Morris Rosati and John Morris held three unopened letters addressed to their grandmother, Mrs. Francis Morris of Drexel Hill, sent by their father, Jimmy Morris, while he was serving in the 83rd Thunderbolt Division of the U.S. Army during the war.

According to the National World War II Museum , between 1942 and 1945, more than 1 billion letters, know

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